Developmental coordination disorder in preschool children in Taiyuan / 中国基层医药

Objective:To investigate the current situation of developmental coordination disorder in preschool children in Taiyuan, providing evidence for developing health strategies for preschool children in this city.Methods:We selected 11 126 preschool children aged 3-5 years from 24 kindergartens in Taiyuan using the cluster random sampling method during November-December 2018. Each preschool child was tested with the developmental coordination disorder questionnaire for young children.Results:The incidence of developmental coordination disorder was 3.4%, and the incidence of suspected developmental coordination disorder was 5.4%, and the incidences of which were higher in boys than in girls ( χ2 = 9.46, P < 0.01). The incidence of developmental coordination disorder decreased with aging ( r = -0.06, P < 0.01). The incidence of developmental coordination disorder was negatively correlated with parents' education level and maternal passive smoking during pregnancy ( r = -0.11, P < 0.01; r = -0.12, P < 0.01; r = -0.03, P < 0.01). Lower parents' education level and maternal passive smoking during pregnancy led to a higher incidence of developmental coordination disorder in children. Conclusion:Preschool children from Taiyuan had a lower incidence of developmental coordination disorder than those from economically developed south areas. The higher the gross domestic product in the areas where the kindergartens locate, the lower the incidence of developmental coordination disorder ( r = 0.03, P < 0.01). Environmental factors have a certain impact on developmental coordination disorders in preschool children. Parents, kindergarten teachers, and child health workers should take active intervention measures against the adverse factors in the early development environment of children.

One case with anti-S antibodies causing problems in cross-matching blood / 天津医药

Anti-S antibody is rare and irregular antibody in MNS blood group system. One patient was found positive when doing antibody screening experiment before coronary artery bypass grafting. This is the first case of serum IgG-anti-S in our laboratory. S-antibody screening test and irregular antibody identification are important before blood transfusion, which can reduce the transfusion reaction.

Strengthening self -management improves treatment compliance and outcome in hepatitis B patients with decompen-sated cirrhosis treated with entecavir / 临床肝胆病杂志

Objective To investigate the effect of strengthening self -management on the treatment compliance and outcome in hepatitis B patients with decompensated cirrhosis treated with entecavir.Methods A total of 120 hepatitis B patients with decompensated cirrhosis, who received antiviral therapy with entecavir in our hospital from January 2010 to January 2012,were randomly divided into control group (n=60)and intervention group (n =60).Both groups received routine nursing care;in addition,regular telephone follow -up was performed for the intervention group to provide guidance for the self -management during the comprehensive prevention and treatment of decompensated cirrhosis.The two groups were compared in terms of withdrawal rate,rehospitalization rate,hepatitis B virus (HBV)DNA negative conver-sion rate,incidence of primary liver cancer,and mortality one year later.Continuous data were analyzed by t test,and categorical data by chi -square test or Fisher′s exact test.Results The withdrawal rate and rehospitalization rate in the intervention group were 0 and 18.3%, respectively,versus 8.3% and 35% in the control group (P 0.05 for all).Conclusion Strengthening self -management,as well as regular health education,can improve treatment compliance and promote recovery in hepatitis B patients with decompensated cirrhosis treated with entecavir.

Preparation and cytocompatibility of chitosan-based carriers of corneal cells / 生物工程学报

To study the possibility of using hydroxypropyl chitosan-based blend membranes as carriers of corneal cells in tissue engineering, we prepared three kinds of blend membranes labeled hydroxypropyl chitosan/chondroitin sulfate, hydroxypropyl chitosan/gelatin/chondroitin sulfate and hydroxypropyl chitosan/oxidized hyaluronic acid/chondroitin sulfate. The transparency, water content and ability of protein adsorption of the blend membranes were measured. To evaluate the cytocompatibility of the blend membranes with corneal epithelial cells, rabbit corneal epithelial cells were cultured on the surface of the carrier membranes. The morphological characteristics, cell adhesion, cell proliferation and the activity of lactate dehydrogenase (LDH) in the media were investigated. Three kinds of blend membranes had good optical transmittance, suitable water content and ability of protein adsorption. The results showed that the less injury was made to corneal epithelial cells by the hydroxypropyl chitosan/gelatin/chondroitin sulfate blend membrane than the others. This kind of membrane was favor of the growth and adhesion of corneal epithelial cells. The hydroxypropyl chitosan/gelatin/chondroitin sulfate blend membrane is a promising carrier of corneal cells and can be used in reconstruction of tissue engineered cornea.

Determination of number average molecular mass of chitosan-oligosaccharide by acetylacetone method / 中国海洋药物

To determine the number average molecular mass of chitosan-oligosaccharide by u-sing the acetylacetone's method based on the color-producing reaction with amino terminal . Via the tests on the repetitiveness, accuracy and the stability, supposed this method was reliable. At the same time, the contrastive results of HPLC and the traditional K3Fe(CN)6 method indicate that the acetylacetone method was more suitable for the determination of chitosan-oligosaccharide molecular mass.